Add agent workbench terminal and live PostgreSQL/Trino SQL consoles.

Clicking agents opens a dedicated terminal panel; topology PostgreSQL/Trino nodes open SQL workbench with ten demo queries and Postgres vs Trino benchmark.

api/main.py

@@ -29,6 +29,7 @@ from presentation_upload import get_deck, list_decks, save_upload
 from presentation_static import get_static_deck, list_static_decks
 from storage_s3 import router as storage_s3_router
 from elasticsearch_api import router as elasticsearch_router
+from sql_console import router as sql_router
 from node_registry import NODE_IDS, NODE_AGENT, NODE_REGISTRY, is_node_id
 from node_ops import build_node_detail, probe_node, run_node_probe_task
 from approval_service import (
@@ -707,6 +708,7 @@ async def lifespan(app: FastAPI):
 app = FastAPI(title="ATC Command Center API", lifespan=lifespan)
 app.include_router(storage_s3_router)
 app.include_router(elasticsearch_router)
+app.include_router(sql_router)
 app.add_middleware(
     CORSMiddleware,
     allow_origins=["*"],